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PHYS 201: Exam 2
1 Calorie
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heat necessary to raise the temp of 1 Kg of water by 1 degrees C
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1 KWHR
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3.6 E 6 joules
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1 BTU
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1055 joules
heat necessary to raise the temp of 1 lb of water by 1 degree F
|
1 KG chemical fuel
|
1 E7 joules/kg
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1 KG matter-antimatter
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1 E17
total matter antimatter annihilation
|
1 kitchen match
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1 BTU
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1 HP
|
750 watts
7.5 horses do what one man can
|
1 person's energy per day
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2000 C/day
100 Watts
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1 person's maximum power
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100 Watts continuous, 400 Watts peak
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US & SC year round Average solar power (day, night, rain, sun)
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200 W/m^2
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Passive Solar efficiency
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50%
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US population
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300 million
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Earth population
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7 billion
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SC population
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4 million
1% of US
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1 revolution
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2 pi radians
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